Concentrator



(No Model.)

I 3 Sheets-Sheet 1. G. GATES. UONGENTRATOR- No. 415,999. Patented Nov. 26, 1889.

3 Sheets-Sheet 2. G. GATES. GONOENTRATOR.

(No Model.)

No. 415,999. Patented Nov. 26, 1889.

lir Sh N. PETERS, Phokrljlhugnpher, Washingmn, D. C,

3 Sheets-Sheet 3. G GATES GONGENTRATOR.

(No Model.)

Patented Nov. 26, 1889.

UNITED STATES PATENT OFFICE.

GEORGE GATES, OF DRYTOIVN, CALIFORNIA.

CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 415,999, dated November 26, 1889.

Application filed July 1, 1889. Serial No. 316,253. (No model.)

To all whom it may concern:

Be it known that I, GEORGE GATES, of Drytown, Amador county, State of California, have invented an Improvement in Concentrators; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of machines for concentrating ores, in which the separation takes place upon a concentratingtable, to which is given a jarring movement; and my invention consists in the combinations and arrangement of parts, hereinafter fully described, and specifically pointed out in the claims.

The object of my invention is to provide a machine capable of effective and thorough concentration.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a perspective view of my concentrator. Fig. 2 is a vertical longitudinal section on the line a: 00 of Fig. 3. Fig. 3 is a cross-section on the line y y, Fig. 2. Fig. 4 is a detail perspective of the roller h and connections. Fig. 5 is a detail perspective of the feeder L. Fig. 6 is a plan of the foot of two of the runs g, showing the flanges M and discharge-slots m.

The frame-work or foundation of the machine is made up of the cross-pieces A, on the tops of which are secured the beams B, and on these beams is properly supported the adjusting-frame C, the lateral inclination of which may be varied to change the grade of the concentrating-table by means of the wedges D, adapted to be driven under it at one side. In the top of this adj ustingframe, on each side, are mounted the carrying-rollers c, and said frame is also provided with longitudinal strips 0, the projecting ends of which serve as carriers for the camshaft E, upon which is mounted the cam e. and a driving-pulley e.

F are upright stationary buffer-frames mounted on the fixed foundation of the machine.

G represents the concentrating-table generally and is made up of longitudinal basepieces g and a cross-platform which is divided into a number of parallel runs or channels g, formed by intervening raised strips 9 The table G has tracks g, secured under its base-pieces g, and these tracks rest upon the grooved carrying-rollers c of the adjusting-frame. It will be seen that the coneentrating-table G being mounted upon the frame C, as shown, its parallel runs or channels g extend transversely of the machine, and the grade of these runs or channels may be adjusted and regulated by adjusting the inclination of the frame 0 by means of the wedges D, as heretofore mentioned. The two side beams g of the table serve as buffers to act against the buffer-framcs F of the fixed foundation-frame, while the middle piece g has connected with its end a bracket H, having a cross-shaft h, on which is mounted a roller h, against which the cam e on the camshaft E is adapted to operate, whereby the entire table G is moved forwardly on the machine, traveling easily on the rollers c. The table is drawn back, so as to bring its pieces 9' into contact with the butter-frames F to produce a jar, by means of the springs I, which are secured to the pieces 9 at one end and are adjustably connected with the buffer-frames Fat the other end, whereby their tension may be properly regulated.

By rotating the cam-shaft E its cam 6 will act against the roller h and thereby force the concentratingable forward, and as it relieves said table the springs I will draw it backward, so that its pieces 9 come in contact with the bi1ffei'fi'a1nes and will produce a jar in a direction at right angles to the flow of material on the table. \Vithin the runs or channels 9, and at one side thereof, being the side next to the jarring mechanism, are fixed the boxes J, having a V shape, and commencing at the head of each run or channel and thence extending a short distance, in practice about eighteen inches. The boxes are provided with perforations j in their bottoms, so that the material fed to them is discharged at one side of the runs or channels.

K are perforated fresh-water pipes located in each run or channel g and atone side thereof, being the same side on which the material is fed. These water-pipes extend the whole length of the runs or channels and are each connected at its head by pipes k with the main water-pipe k, the communication being regulated and controlled separately and independently by the cooks 73. With the main pipe 76' is also connected a supplementary perforated feed-water pipe 7.; which extends across the head of the table and across all the runs and is controlled by a cock 7;. It is adapted to discharge its water into the distributing-boxes J.

L is the feeder for the table. This consists of a number of parallel passages Z, having regularly-increasing lengths, as shown, said passages communicating at their heads with the feed-chamber Z, to which ore is fed over the apron Z This feeder is carried on the top of the table G at the head of its runs or channels, and the passages Z of said feeder extend at right angles to the runs of the table, and by reason of their varying lengths there is one passage of the feeder for each run or channel of the table. The ends of the feeder-passage are in communication directly over the boxes J in the runs or channels of the table, so that the ore is fed directly into said boxes.

In order to throw the table out of connection with the cam-shaft, without stopping the movement of said shaft, I make the roller h movable on its shaft 71-, so that it can be thrown over to one side out of the way of the cam 6, whereby said cam may revolve freely without touching it; but when in position to be acted upon by the cam said roller is held by the swinging latch-arm W.

In the lower end of each run or channel g is a slightly-inclined guide-strip M, on one side of which is a slot or opening m through the floor of the run or channel and commu-' nicating with the discharge-trough N.

The operation of the concentrator is as follows: The material is fed down from the battery of the stamp-mill over the apron Z into the feed-chamber Z, from which it passes, and is distributed equally into each of the passages Z of the feeder L. Thence it is discharged from the said passages into the boxes J in each of the runs or channels of the con centrating-table. In these boxes the material is again distributed equally through the perforations j, and, together with the water which is fed from the upper ends of the fresh-water pipes K, passes down into the runs or channels and wholly upon one side thereof, this side being the side next to the jar which the table receives. The water from the pipes K, falling also directly into the runs or channels below the boxes and upon the same or jar side of the channels, produces a transverse wave in the said channels, which, on account of the initial position of the material and the jar which the table receives, carries the sand and light worthless material off to the other side of each run or channel, leaving the concentrates uponv the first side, so that in each run or channel there are two distinct streams of material, the one on the jar side being the concentrates, which confine themselves to that side, while the other is the worthless material, which is thrown to and remains on the other side. These two streams of material are by this construction kept very distinct from each other, and at the foot of each run or channel they are guided by the strip M, the concentrates passing into the slot m, from which they pass into the discharge-trough N, and the worthless material passes off the end of the run or channel.

The object of the supplementary waterpipe k is to supply additional water to the at right angles thereto, and having independent passages communicating with the channels in the table for feeding onethereto, and a water-pipe for directing the water upon said side of the table, substantially as described.

2. In a concentrator, the combination of the table having its surface divided into a number of independent inclined parallel runs or channels and having a jarring or shaking movement at right angles to the flow of material therein, a feeder at right angles to the table having passages of regularly-increasing lengths, whereby the material is directed into the runs or channels in the table, and the perforated water-pipes on the same side of said runsor channels for discharging water into them on said side, substantially as described.

3. In a concentrator, the combination of the table divided into a number of independent parallel inclined runs or channels and having a jarring or shaking movement at right angles to the flow of the material. therein, a perforated distributing-box in the head of each run or channel and at one side thereof, perforated water-pipes in the same side of the runs or channels, and a feeder having i11- dependent passages for directing the material into each of the distributing-boxes, substantially as described.

4:. In a concentrator, the combination of the table formed with inclined runs or channels and having a jarring or shaking movement at right angles to the How of the material therein, the perforated distributing-box at the head of each run or channel and at one side thereof, the perforated water-pipes extending the length of said runs or channels and at the same side thereof as the distributing-boxes, the directing-strips M at the base of each run or channel, the dischargeslots 4% and trough N, substantially as described.

5. In a concentrator, the table formed with the independent inclined runs or channels and having a jarring or shaking movement at right angles to the flow of material therein, in combination with the distributing-boxes at the head of each run or channel and at one side thereof, the perforated water-pipes extending the whole length of said runs or channels and at the same side thereof as the distributing-boxes, the main water-pipe, the connecting-pipes k, and the controllingcocks k whereby the water supplied to the runs or channels is regulated and controlled, substantially as described.

6. In a concentrator, the table formed with the independent inclined runs or channels and having a jarring or shaking movement at right angles to the flow of material therein, in combination with the distributing-boxes at the head of each run or channel and at one side thereof, the perforated water-pipes extending the length of each run or channel and at the same side thereof as the distributing-boxes, the main pipe 79, the connecting-pipes 7s, and controlling-cocks k and the supplemental water-pipe k having the controlling-cock substantially as described.

7. In a concentrator, the table G, having the inclined runs or channels, the perforated distributing-box at the head of each run or channel at right angles and at one side thereof, and the perforated water-pipes at the same side of said runs or channels, in combination with the sliding roller h, connected with the table, the shaft E,having the cam e operating against the roller, the buffers g of the table, the fixed buffers F, and the springs I, connecting said buffers, substantially as described.

S. In a concentrator, the fixed frame-work forming the foundation, and the adjustingframe (J, mounted thereon and having carrying-rollers c, in combination with the table G, mounted upon said rollers, the parallel runs or channels formed 011 said table and extending transversely to the direction of the tables movement, the perforated distributing-boxes J in the head of each run or channel and at one side thereof, the perforated water-pipes K in each run or channel and at the same side thereof, the shaft E on the frame 0 and the cam on the shaft, the roller on the table G, against which the cam acts, the buffers g of the table, the fixed buffers F of the foundation-frame, and the springs I, connecting the buffers, substantially as described.

9. In a concentrator, the movable table G and the cam e, operating against it, in combination with the sliding roller 71, connected with the table and against which the cam acts, and the latch 77.2, for holding the roller in place and relieving it, so that it may be thrown out of or into connection with the cam, substantially as described,

10. A concentrating-machine consisting of the combination of the foundation-frame having the fixed buffers F, the adjusting-frame C, mounted on the fixed frame, and the wedges D, for regulating the'inclination of the frame 0, the carrying-rollers c on said adjustingframe, the cam-shaft E, carried by said frame and having the cam e, the table G, mounted on the carrying-rollers of the adj ustin g-frame and having the buffers g and the roller h,

the springs I, connecting the buffers g with the buffers F, the parallel transversely-an,

ranged inclined runs or channels of the table, the distributing-boxes J at the head of each run and at one side thereof, the perforated water-pipes K in each run and at the same side thereof as the distributing-boxes, and the feeder L, mounted on the table at its head and having the passages Z for directing the material into the distributingboxes J, substantially as herein described.

In witness whereof I have hereunto set my hand.

GEORGE GATES.

lVitnesses:

S. H. NoURsE, II. 0. LEE. 

